what's the difference between a 250w ps and a 300w ps???

[wtp]

i need to know, i don't really get what the diffrence are from these power supplies. thanx http://sysopt.earthweb.com/forum/smile.gif

wtp http://sysopt.earthweb.com/forum/smile.gif

[alan]

er 50watts
alan

[ceedee]

lol
im not totally sure myself except other than the obvious ie it is bigger and can supply more power whilst taking less load

[LJE2]

When you start adding things like extra drives (CDR's, DVD ect.) large cooling fans, peltier coolers, (these can use as much as 50 to 70 watts), you need a power supply that will supply more power.

[This message has been edited by LJE2 (edited 05-17-2000).]

[Andy_L]

An important thing about power supplies is you want a little power to spare, even tho a 250W (or 230 or 200) may produce just enough power to run your system, if its running on the edge, the power will not be as clean (steady) and the power supply will get hotter than normal.

[wtp]

hehe, how have i've been so stupid, thanx guys, hehe, and yes alan, i notice that it's a 50 watts diff., but i wanted information other than that http://sysopt.earthweb.com/forum/smile.gif

wtp http://sysopt.earthweb.com/forum/smile.gif

[Win_98]

with 250w you can have up to 5 IDE devices such as Harddrive and cdroms
and even so it seem to cut off occasionally
if you have too many component and power on
it will cut off or smoke. say bye bye to your
case.
with 300w you can have up to 8 ide devices
so who use that many anyway
just get rid of ancient hd drive of 1gig, 2gig etc and use only 1 10gig or 1 17 gig
more then enought.

[alondra]

may I suggest a electro-mechanical answer
volts x amps=watts, the volts will be the same (untill you over load it) the box will be the same size but the components, transformer wire,will be heavyer, rectifiers will be higher rated, and of course fuse higher. if you overload it the voltage will drop and if the fuse dont blow the transformer will cook. the main danger is the voltage drop to components.
hope this has been helpfull.

[JW310]

So if I have a 235 watt power supply and it's constantly blowing out very warm air, should I consider getting a 300 watt power supply? I normally run my system 24/7, which probably contributes to part of the heat generated by the ps. To give an idea of what my system has in it, all of the slots are full, 1 AGP, 4 PCI, and 2 ISA, I have 2 sticks of PC100 SDRAM (64MB), a DVD-ROM, CD-RW, SCSI hard drive, IDE hard drive, and a SuperDisk drive. Should I start looking for a 300 watt power supply to replace the 235 watt one I have right now?

Thanks!
JW

[alondra]

I would think that inasmuch as you are on 24/7 and every thing works fine, there is no problem, unless a fan dies. there will be warm air out of any PS.

[JW310]

alondra, both my wallet and I thank you for that http://sysopt.earthweb.com/forum/smile.gif. It looks like I'll just stick with the PS that I have for now, and replace it if/when it starts giving me problems.

JW

[blondini]

the main difference i notice is the amps supplied at each specific voltage rating ie.
just as an example:
250watts=12v\10a 5v\20a
300watts=12v\12a 5v\25a
,this of course as stated above will allow you to run more current hungry devices, imagine spinning up three hdd's on a freezing cold morning,plus your 12v\4a peltier-250 does for most folks but 300 would be best if cost is cheap enough